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Unit 5 Part 2   Types Of Chemical Reactions
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Unit 5 Part 2 Types Of Chemical Reactions

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    Unit 5 Part 2   Types Of Chemical Reactions Unit 5 Part 2 Types Of Chemical Reactions Presentation Transcript

    • Part 2: Types of Chemical Reactions Objectives For this Lesson
    • Objectives For this Lesson
      • After this lesson you should be able to:
      • 1. Classify a chemical reaction as composition, decomposition, single replacement, or combustion.
      • 2. Predict the products of simple composition and decomposition reactions.
    • Objectives cont.
      • 3. Use the activity series of metals to produce the products of single replacement reactions.
      • 4. Write the products of the double replacement reaction between two ionic compounds.
    • 5 Types of Reactions
      • Composition (synthesis)
      • Decomposition
      • Single Replacement
      • Double Replacement
      • Combustion
    • Composition (synthesis) Reactions
      • Two or more substances react to form a single substance .
      • These reactions usually result in the release of energy .
      A+ B AB S + O O O O S
    • Your Turn
      • Write a balanced chemical equation for the reaction of:
        • solid aluminum with sulfur.
        • Water and dinitrogen pentoxide.
    • Decomposition Reactions
      • A single substance is broken down into two or more substances.
      A+ B AB O O C Ca O O Ca + O O C
    • Try These
      • Write a balanced chemical equation for the decomposition of:
        • Aluminum oxide.
    • Single Replacement Reactions
      • One element displaces another element from a compound in a single replacement reaction.
      A+ BX AX +B Fe + S O O O O Cu S O O O O Fe Cu +
    • Activity Series
      • Whether an element will replace another depends upon how active the elements are. A more active element will replace a less active element.
      • See your activity chart to determine which elements are more active than others.
    • Solving Single Replacement Reactions
      • Determine what is being replaced, the metals or nonmetals.
      • Look up the elements on your activity series chart, to see if the reaction will take place.
      • Write the complete skeleton equation, and balance it.
    • Your Turn
      • Write balanced chemical equations for the reaction of:
        • Potassium and Zinc Chloride.
        • Chlorine and Hydrofluoric acid.
        • Iron and Sodium phosphate.
        • Fluorine and hydrochloric acid.
    • Double Replacement Reactions
      • Two ionic compounds exchange cations and anions.
      • Hint: “outsides combine, insides combine ”.
      AX+ BY AY +BX
    • + + O O N O Ag K Cl Cl Ag O O N O K
    • Try these
      • Write a balanced chemical equation for the reaction of
        • Lithium iodide and silver nitrate.
        • Barium chloride and potassium carbonate.
    • Combustion Reactions
      • A substance burning in oxygen .
      • Combustion reactions usually involve hydrocarbons .
      • Complete combustion results in the formation of water and carbon dioxide.
      • Incomplete combustion results in the formation of soot and carbon monoxide.
    • Examples
      • Write a balanced chemical equation for the complete combustion of Propane, C 3 H 8
      • Write a balanced chemical equation for the incomplete combustion of Propane.